median

Short definition from Wiktionary

Noun

1. 1
   A central vein or nerve, especially the median vein or median nerve running through the forearm and arm.
2. 2
   A line segment joining the vertex of triangle to the midpoint of the opposing side.
3. 3
   A number separating the higher half from the lower half of a data sample, population, or probability distribution. The median of a finite list of numbers can be found by arranging all the observations from lowest value to highest value and picking the middle one (e.g., the median of {3, 3, 5, 9, 11} is 5). If there is an even number of observations, then there is no single middle value; the median
4. 4
   The area separating two lanes of opposite-direction traffic.
5. 5
   A Mede.

Adjective

1. 1
   Situated in a middle, central, or intermediate part, section, or range of (something).
2. 2
   In the middle of an organ, structure etc.; towards the median plane of an organ or limb.
3. 3
   Having the median as its value.
4. 4
   Relating to Media or Medes.
5. 5
   Of laws, rules etc.: unchanging, invariable.

Proper noun

1. 1
   The northwestern Old Iranian language of the Medes, attested only by numerous loanwords in Old Persian, few borrowings in Old Armenian and some glosses in Ancient Greek; nothing is known of its grammar.